They look needlessly dangerous to use, particuarly if they're for portable items since it's more easily distracting than the screen as well as looking so obtrusive and expensive that they're going to get you noticed and likely robbed if you're in a place that you couldn't use bigger screens anyway. Particuarly since they even suggest using it in a "coffee shop", they're clearly not entirely sane because, coffee shop plus extracting yourself from the real world sounds normal, but only in a non-silly-looking-eye-screens-and-actually-quite-pompous-and-pretentious-beret-wearing way.
And if you're in your own home, use a freaking TV.
Plus, that picture of the lady wearing them makes me laugh. Do you want to be laughed at?
That's my user review, and I didn't even have to use it, since the quality is a moot point if it's not logically functional or desirable. (Plus, I've heard using such things, even these newer models end up in the user having head splitting brainaches.)
And as Lethean pointed out, it's not that much better.
